1: (6 8 16)

(0 19 3)(1 14 2)(4 10 7)(5 17 15)(6 8 16)(9 13 11)(12 20 18)

2: (4 10 7)

(0 19 3)(1 14 2)(4)(5 17 15)(6 8 16)(7)(9 13 11)(10)(12 20 18)

3: (6 8 16)

(0 19 3)(1 14 2)(4)(5 17 15)(6)(7)(8)(9 13 11)(10)(12 20 18)(16)

4: (5 17 15)

(0 19 3)(1 14 2)(4)(5)(6)(7)(8)(9 13 11)(10)(12 20 18)(15)(16)(17)